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Movement: mechanical hand-wound


Functions: hours – minutes – power reserve situated on the back – spherical moon-phase indication at 12 o’clock


Diameter 30 mm - 307 parts - hand-crafted finishing and decoration –Côtes De Bethune – chamfered and polished steel


Self-regulating twin barrel*
Titanium/platinum balance wheel – balance-spring with flat terminal curve*
Silicon/platinum balance - balance-spring with flat terminal curve*
Triple pare-chute shock-absorbing system*
Spherical moon-phase indication accurate to a degree of one lunar day every 122 years*
Silicon escape-wheel*


Jewelling: 29 jewels
Frequency: 28,800 vibrations per hour
Power reserve: 6 days

* - Manufacture De Bethune patents and innovations


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